Question

Give the reason for the following: 

The kinetic energy of molecules of gases is very large & of solids, the least.

Answer 1

The Kinetic Energy of molecules of gases is very large because:

1. 1. The inter-particle space between the particles is maximum.
   2. The Inter-particle attraction between the particles is negligible. Whereas the kinetic energy of molecules of solids is least.

The Kinetic Energy of molecules of solids is the least because:

1. The Inter-particle space between the particles is minimum.
2. The Inter-particle attraction between the particles is very strong.